//-----------------------------------【Direct3D_Init( )函数】--------------------------------------
// 描述：Direct3D初始化函数，进行Direct3D的初始化
//------------------------------------------------------------------------------------------------
HRESULT Direct3D_Init(HWND hwnd)
{
//--------------------------------------------------------------------------------------
// 【Direct3D初始化四步曲之一，创接口】：创建Direct3D接口对象, 以便用该Direct3D对象创建Direct3D设备对象
//--------------------------------------------------------------------------------------
LPDIRECT3D9 pD3D = NULL; //Direct3D接口对象的创建
if( NULL == ( pD3D = Direct3DCreate9( D3D_SDK_VERSION ) ) ) //初始化Direct3D接口对象，并进行DirectX版本协商
return E_FAIL;
//--------------------------------------------------------------------------------------
// 【Direct3D初始化四步曲之二,取信息】：获取硬件设备信息
//--------------------------------------------------------------------------------------
D3DCAPS9 caps; int vp = 0;
if( FAILED( pD3D->GetDeviceCaps( D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, &caps ) ) )
{
return E_FAIL;
}
if( caps.DevCaps & D3DDEVCAPS_HWTRANSFORMANDLIGHT )
vp = D3DCREATE_HARDWARE_VERTEXPROCESSING; //支持硬件顶点运算，我们就采用硬件顶点运算，妥妥的
else
vp = D3DCREATE_SOFTWARE_VERTEXPROCESSING; //不支持硬件顶点运算，无奈只好采用软件顶点运算
//--------------------------------------------------------------------------------------
// 【Direct3D初始化四步曲之三，填内容】：填充D3DPRESENT_PARAMETERS结构体
//--------------------------------------------------------------------------------------
D3DPRESENT_PARAMETERS d3dpp;
ZeroMemory(&d3dpp, sizeof(d3dpp));
d3dpp.BackBufferWidth = WINDOW_WIDTH;
d3dpp.BackBufferHeight = WINDOW_HEIGHT;
d3dpp.BackBufferFormat = D3DFMT_A8R8G8B8;
d3dpp.BackBufferCount = 1;
d3dpp.MultiSampleType = D3DMULTISAMPLE_NONE;
d3dpp.MultiSampleQuality = 0;
d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
d3dpp.hDeviceWindow = hwnd;
d3dpp.Windowed = true;
d3dpp.EnableAutoDepthStencil = true;
d3dpp.AutoDepthStencilFormat = D3DFMT_D24S8;
d3dpp.Flags = 0;
d3dpp.FullScreen_RefreshRateInHz = 0;
d3dpp.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE;
//--------------------------------------------------------------------------------------
// 【Direct3D初始化四步曲之四，创设备】：创建Direct3D设备接口
//--------------------------------------------------------------------------------------
if(FAILED(pD3D->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL,
hwnd, vp, &d3dpp, &g_pd3dDevice)))
return E_FAIL;
SAFE_RELEASE(pD3D) //LPDIRECT3D9接口对象的使命完成，我们将其释放掉
if(!(S_OK==Objects_Init(hwnd))) return E_FAIL; //调用一次Objects_Init，进行渲染资源的初始化
return S_OK;
}
HRESULT Direct3D_Init(HWND hwnd, HINSTANCE hInstance)
{
//--------------------------------------------------------------------------------------
// 【Direct3D初始化四步曲之一，创接口】：创建Direct3D接口对象, 以便用该Direct3D对象创建Direct3D设备对象
//--------------------------------------------------------------------------------------
LPDIRECT3D9 pD3D = NULL; //Direct3D接口对象的创建
if (NULL == (pD3D = Direct3DCreate9(D3D_SDK_VERSION))) //初始化Direct3D接口对象，并进行DirectX版本协商
return E_FAIL;
//--------------------------------------------------------------------------------------
// 【Direct3D初始化四步曲之二,取信息】：获取硬件设备信息
//--------------------------------------------------------------------------------------
D3DCAPS9 caps; int vp = 0;
if (FAILED(pD3D->GetDeviceCaps(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, &caps)))
{
return E_FAIL;
}
if (caps.DevCaps & D3DDEVCAPS_HWTRANSFORMANDLIGHT)
vp = D3DCREATE_HARDWARE_VERTEXPROCESSING; //支持硬件顶点运算，我们就采用硬件顶点运算，妥妥的
else
vp = D3DCREATE_SOFTWARE_VERTEXPROCESSING; //不支持硬件顶点运算，无奈只好采用软件顶点运算
//--------------------------------------------------------------------------------------
// 【Direct3D初始化四步曲之三，填内容】：填充D3DPRESENT_PARAMETERS结构体
//--------------------------------------------------------------------------------------
D3DPRESENT_PARAMETERS d3dpp;
ZeroMemory(&d3dpp, sizeof(d3dpp));
d3dpp.BackBufferWidth = WINDOW_WIDTH;
d3dpp.BackBufferHeight = WINDOW_HEIGHT;
d3dpp.BackBufferFormat = D3DFMT_A8R8G8B8;
d3dpp.BackBufferCount = 2;
d3dpp.MultiSampleType = D3DMULTISAMPLE_NONE;
d3dpp.MultiSampleQuality = 0;
d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
d3dpp.hDeviceWindow = hwnd;
d3dpp.Windowed = true;
d3dpp.EnableAutoDepthStencil = true;
d3dpp.AutoDepthStencilFormat = D3DFMT_D24S8;
d3dpp.Flags = 0;
d3dpp.FullScreen_RefreshRateInHz = 0;
d3dpp.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE;
//--------------------------------------------------------------------------------------
// 【Direct3D初始化四步曲之四，创设备】：创建Direct3D设备接口
//--------------------------------------------------------------------------------------
if (FAILED(pD3D->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL,
hwnd, vp, &d3dpp, &g_pd3dDevice)))
return E_FAIL;
//获取显卡信息到g_strAdapterName中，并在显卡名称之前加上“当前显卡型号：”字符串
wchar_t TempName[60] = L"当前显卡型号："; //定义一个临时字符串，且方便了把"当前显卡型号："字符串引入我们的目的字符串中
D3DADAPTER_IDENTIFIER9 Adapter; //定义一个D3DADAPTER_IDENTIFIER9结构体，用于存储显卡信息
pD3D->GetAdapterIdentifier(0, 0, &Adapter);//调用GetAdapterIdentifier，获取显卡信息
int len = MultiByteToWideChar(CP_ACP, 0, Adapter.Description, -1, NULL, 0);//显卡名称现在已经在Adapter.Description中了，但是其为char类型，我们要将其转为wchar_t类型
MultiByteToWideChar(CP_ACP, 0, Adapter.Description, -1, g_strAdapterName, len);//这步操作完成后，g_strAdapterName中就为当前我们的显卡类型名的wchar_t型字符串了
wcscat_s(TempName, g_strAdapterName);//把当前我们的显卡名加到“当前显卡型号：”字符串后面，结果存在TempName中
wcscpy_s(g_strAdapterName, TempName);//把TempName中的结果拷贝到全局变量g_strAdapterName中，大功告成~
if (!(S_OK == Objects_Init())) return E_FAIL;
SAFE_RELEASE(pD3D) //LPDIRECT3D9接口对象的使命完成，我们将其释放掉
return S_OK;
}
